how many valence electrons are in a chlorine atom?
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How many valence electrons are in an atom of chlorine? This means, that the number of electrons present in an chlorine atom is 17. The energy shells of an atom are in the order K, L, M … So the electronic configuration of chlorine atom is: K, L, M = 2, 8, 7. Valence electrons are the number of electrons present in the outermost shell of an atom. The last shell of a chlorine atom has 7 electrons in it. Therefore, there are 7 valence electrons in an chlorine atom. Here is a video which gives a quick discussion of how to determine how many valence electrons atoms of different elements have.
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- Feb 11, 2015. Bromine atom has 7 valence electrons. For a main group element, a valence electron is an electron that has the highest principal quantum number, n. The electron configuration of Br is 1s² 2s²2p⁶ 3s²3p⁶ 4s²3d¹⁰4p⁵. The electrons with the highest quantum number are the 4s²4p⁵ electrons. Thus, Br has seven valence electrons.
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- when the chlorine atom gains an electron its charge becomes -1. this is because the total number of electrons for chlorine is now 18.
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How many protons neutrons and electrons are in chlorine? There are 17 protons in the nucleus of each chlorine atom. The number of neutrons is different for different isotopes of chlorine, but is always the difference between the iso … topic mass number and the atomic number, which is the same as the number of protons in each nucleus.
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Chapter 5.3: Lewis Structures Solution: 1  Nitrogen is less electronegative than chlorine, and halogen atoms are usually terminal, so nitrogen is the central atom. The nitrogen atom (group 15) has 5 valence electrons and each chlorine atom (group 17) has 7 valence electrons, for a total of 26 valence electrons.
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- Chlorine is a chemical element with symbol Cl and atomic number 17. It also has a relative atomic mass of 35.5. Chlorine is in the halogen group (17) and is the second lightest halogen following fluorine. The element is a yellow-green gas under standard conditions, where it forms diatomic molecules.
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Critical Survey of Poetry - European Poets So how many electrons are in the third energy level? Well, there's two and five, for a total of seven. So chlorine has seven valence electrons. And once again, that's very convenient, because chlorine is in group seven. And so let's go ahead and draw chlorine with its seven valence electrons. So here is chlorine.
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Octet rule A chlorine atom has seven electrons in its outer electron shell, the first and second shells being filled with two and eight electrons respectively. The first electron affinity of chlorine (the energy release when chlorine gains an electron) is +328.8 kJ per mole of chlorine atoms.
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- Fluorine's atomic number is 9. Thus, neutral fluorine has 9 protons and 9 electrons. It's total configuration then is 1s2 2s2 2p5, so its valence configuration is 2s2 2p5.
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Elements for Kids Chlorine is the second element in the seventeenth column of the periodic table. It is classified as a member of the halogen group. It has 17 electrons and 17 protons with 7 valence electrons in the outer shell. It is about the twentieth most abundant element in the Earth's crust. Characteristics and Properties. Under standard conditions chlorine is a gas that forms diatomic molecules.
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- this is because the total number of electrons for chlorine is now 18. protons and electrons have the same atomi … c number, but when a chlorine ion forms it has one extra electron compared to the number of protons therefore giving it a negative charge of 1. Answered.
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Drawing the Lewis Structure for NO 2 - After determining how many valence electrons there are in NO2-, place them around the central atom to complete the octets. There are a total of 18 valence electrons for the Lewis structure for NO2-. Nitrogen is the least electronegative atom in the NO2- lewis structure and therefore goes in the center of the structure.
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If A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus? If a neutral chlorine atom has 17 electrons, how many protons does it have?A) 2 B) 17 C) 34 D) 18.
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Ions The Cl ion. 1  because it has a greater affinity for electrons than the Na atom, the Cl atom takes an electron from the Na atom. 2  When it does so, the outer valence shell of the Chlorine will be filled with eight electrons and so it will be stable. 3  Thus Chloride ions are stable and have a net charge of -1.
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Electron Configuration The electron configuration for Ca 2+ is the same as that for Argon, which has 18 electrons. Hence, we can say that both are isoelectronic. The electronic configuration of anions is assigned by adding electrons according to Aufbau's building up principle. We add electrons to fill the outermost orbital that is occupied, and then add more electrons to the next higher orbital. The neutral atom chlorine (Z=17), for instance has 17 electrons.
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Elements The elements with 2 electrons in their outermost shell interact with chlorine and the other halogens to form, e.g., BeCl 2, MgCl 2, CaCl 2. Again, the result is a pair of atoms each with a stable octet of electrons in its outermost shell.
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What is Salt in Chemistry? - Definition & Formula Chlorine is a non metal and is found in group 17 (7A) of the periodic table. It has seven valence electrons, and it needs just one more electron to achieve the magic eight stability! It does this by forming the Cl-anion.
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Elements The number of electrons that an atom must acquire, or lose, or share to reach a stable configuration of 8 (2 for hydrogen) is called its valence. Hydrogen, lithium, sodium, and potassium atoms all have a single electron in their outermost shell. Fluorine, chlorine, bromine, and iodine atoms all have 7.
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- The neutral atom of chlorine has 17 protons and electrons.
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Molecular Structure The Reaction between Sodium and Chlorine. Chlorine has 7 electrons in its outer shell. It is in group 7 of the periodic table. When an atom of chlorine reacts it will gain one electron from. sodium. The outer shell of chlorine will then have 8 electrons. and be full. The chloride ion will have an extra electron. and therefore an extra negative charge (shown as a - sign).
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The Periodic Chart of Table of the Elements If the atom participates in covalent bonding, the valency tells the number of electrons the atom shares with its partner atom(s) . The following example will clarify the concept of valency: (a) 1 atom of chlorine combines with 1 atom of hydrogen to form HCl (hydrogen chloride). The valency of chlorine is thus 1 (from the definition of valency). (b) 1 atom of oxygen combines with 2 atoms of hydrogen to form H2O (water or hydrogen monoxide).
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Difference Between Chlorine and Chloride Chlorine is an element in the periodic table, which is denoted by Cl. It is a halogen (17 th group) in the 3 rd period of the periodic table. The atomic number of chlorine is 17; thus, it has seventeen protons and seventeen electrons. Its electron configuration is written as 1 s 2 2 s 2 2 p 6 3s 2 3p 5.Since the p sub level should have 6 electrons to obtain the Argon noble gas electron configuration, chlorine is able to attract an electron.hlorine vs Chloride. The elements in the periodic table are not stable except the noble gases. Therefore, elements try to react with other elements, to gain the noble gas electron configuration to achieve stability.
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Valence (chemistry) Chlorine has seven valence electrons and can form only one bond with an atom that donates a valence electron to complete chlorine's outer shell. However, chlorine can also have oxidation states from +1 to +7 and can form more than one bond by donating valence electrons.lthough hydrogen has only one valence electron, it can form bonds with more than one atom. In the bifluoride ion ([HF 2]−), for example, it forms a three-center four-electron bond with two fluoride atoms:
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Chemical Bonding: C 2 H 2 C l2 Lewis Structure Transcript: This is the C2H2Cl2 Lewis structure. Carbon has 4 valence electrons, two Carbons; Hydrogen has 1 valence electron, but we have two Hydrogens; plus Chlorine, which is 7, and we have two Chlorines, for a total of 24 valence electrons.e have 24 valence electrons for the C2H2Cl2 Lewis structure. We'll put two electrons between atoms to form the chemical bonds, like this, so I've used 10. Then around the Chlorines, 12, 22, and then back to the central Carbons, 24.
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Lewis Structures (electron dot diagrams) Chemistry Tutorial The total number of valence electrons is 40 (5 from. the P plus 35 from the five Cl atoms). Since the P forms five. bonds, the Lewis structure is. Here the valence shell of the phosphorus atom is said to have. been expanded in order to accommodate five electron pairs.
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Difference Between Bromine and Chlorine Chlorine is a chemical element with symbol Cl and atomic number 17. It has a relative atomic mass of about 35.5. Chlorine is in the halogen group (17) and is the second lightest halogen, following fluorine. The element is a yellow-green diatomic gas under standard conditions. Chlorine has the highest electron affinity and the third highest electronegativity of all the reactive elements.